[PATCH] nfp: fix error return code in nfp_net_netdev_open()

[Wei Yongjun <weiyj.lk@gmail.com>]

From: Wei Yongjun <weiyongjun1@huawei.com>

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 73725d9dfd99 ("nfp: allocate ring SW structs dynamically")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 252e492..39dadfc 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -2044,12 +2044,16 @@ static int nfp_net_netdev_open(struct net_device *netdev)
 
 	nn->rx_rings = kcalloc(nn->num_rx_rings, sizeof(*nn->rx_rings),
 			       GFP_KERNEL);
-	if (!nn->rx_rings)
+	if (!nn->rx_rings) {
+		err = -ENOMEM;
 		goto err_free_lsc;
+	}
 	nn->tx_rings = kcalloc(nn->num_tx_rings, sizeof(*nn->tx_rings),
 			       GFP_KERNEL);
-	if (!nn->tx_rings)
+	if (!nn->tx_rings) {
+		err = -ENOMEM;
 		goto err_free_rx_rings;
+	}
 
 	for (r = 0; r < nn->num_r_vecs; r++) {
 		err = nfp_net_prepare_vector(nn, &nn->r_vecs[r], r);